Thank you for purchasing a Canon product. The high-performance Canon Extender EF1.4X III and Extender EF2X III increase the focal length of the attached EF lens by 1.4X and 2X respectively. aSafety Precautions • Do not look at the sun or a bright light source through the lens with the extender attached, or with a camera with the extender and lens Canon Extender EF 1.4x II. Canon Extender EF 2x II . Sample Images top. Sample Images Intro Specs Performance. Compared Usage Recommendations More. Palm, 21 December 2014. Canon 5D Mark III, Canon EF 400mm f/5.6 L, f/5.6 (wide open) at 1/320 handheld at ISO 100, no lens profile used, Athentech Perfectly Clear v2.) Full resolution. Use the compatibility chart below to find your answer. If you are still undecided, get in touch via Livechat and we can guide you towards the right product. MF Only Can only be used for manual focus. F/8 Only Lens will only operate at F/8 or above. The RF 400 f/2.8 weighs 6.4 lbs (2.9 kg). The 600 F/4, 6.8 lb (3.1kg). That's not a large weight difference. The 400 is 14.4" (367mm) long, while the 600 is 18.6" (472 mm) long. That's a more significant difference. They have almost the same entrance pupil diameter. Reply Reply with quote Reply to thread Complain. Bonsoir J'ai bien lu vos explications sur les avantages et d'un éventuel achat d'un "extender" 1,4 ou 2,00 Canon Je suis en possession de plusieurs objectifs Canon (50mm - 1.8 STM / 10-18mm 4.5-5.6 IS STM et le 100-400mm 4.5-5.6 L IS ii USM) l,ensemble sur un boitier 750D et je voudrais savoir si je prends le multiplicateur 2x iii, est ce que j'augmenterais notoirement le zoom du 100-400mm The Canon 2x EF Extender is designed to work with Canon L lenses. There is a link on this page which leads to a compatibility chart showing all lenses that it works with. A Welland wrote: Does anyone know if the Canon EF 28-300mm f/3.5-5-6 L IS USM lens is compatible with the new 1.4X II extender/teleconverter? No. The only Canon zooms that can mate with the Canon EF 1.4x II and 2x II are the four 70-200Ls, and the 100-400L. 1258B002. Navigate the Reviews. « Canon EF 70-200mm f/2.8L USM Lens Review. » Canon EF 70-200mm f/4L USM Lens Review. Canon & Sony News, Deals, Blog. Sigma Releases New Instant Savings Promotion, Numerous DSLR Lenses Included. Apple Airtag 4-Pack — Only $78.99 (Reg. $99.00) Just Posted: Canon RF-S 10-18mm F4.5-6.3 IS STM Lens Review. Please see the following chart for lens compatibility with the EF 1.4x III and EF 2x III extenders. Solution Thank you norrickb of the Canon Community for contributing to this article! Call 13 13 83. Download drivers, software, firmware and manuals for your Extender EF 2x II. Online technical support, troubleshooting and how-to’s. Wf7B3as.